Device for locking the descent of the reel-holder trolley in...

Details Device for locking the descent of the reel-holder trolley in... Device for locking the descent of the reel-holder trolley in...

2005-03-08

2005-03-08

Marcelo, Emmanuel (Department: 3654)

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

C187S367000, C187S371000

Reexamination Certificate

active

06863263

ABSTRACT:
A device for locking the descent of a reel-holder trolley along a sliding guide under the control of a traction belt in a fixed column winding apparatus. The device includes a clamp connection between belt and trolley, that is attached to the belt and is mobile with respect to the trolley between a first raised position in which the clamp is held by the upward traction exerted by the belt and holds in turn a pair of levers in such a position as not to interfere with side walls of the sliding guide of the trolley and a second position in which it moves automatically by gravity in the event the traction of the belt is released and in which it permits the pair of levers to be elastically stressed in such a position to enter transversally openings of the side walls of the sliding guide of the trolley to lock the descent of the latter.

REFERENCES:
patent: 106284 (1870-08-01), Pollard
patent: 579797 (1897-03-01), Gray
patent: 855646 (1907-06-01), Lehn
patent: 912173 (1909-02-01), Rowley
patent: 981908 (1911-01-01), Baird
patent: 1274746 (1918-08-01), Murphy
patent: 1660064 (1928-02-01), Bellowons et al.
patent: 1696557 (1928-12-01), Tomilin
patent: 4745726 (1988-05-01), Rosenthal et al.
patent: 5234079 (1993-08-01), Nomura
patent: 5738017 (1998-04-01), Behringer
patent: 6206366 (2001-03-01), Schmid

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